pkthingy.js

const dot = require('dot-object');

exports.getProductsBySpecs = async(req,res,next) => {
    try{
        const q = req.query;

        const specificationsInDotNotation = dot.dot(req.query.filter((key) => {
            // Only allow size/color attributes.
            return key === 'size' || 'color';
        }));

        // Ping over our specifications in dot notation.
        const products = await Product.find(specificationsInDotNotation );
        console.log("hopefully its in your console", q);
        res.status(200).json({
            products
        });
    }catch(err){
        catchError(err,next)
    }
}